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The Problem Of The Proportion Of Cement In Refractory Castables
Sep 13, 2018

The problem of cement ratio in refractory castables, refractory castables with cement as binder are refractory castables which are now favored by customers because of their simple construction and wide application range. The cement in refractory castables determines the initial refractory castables. The main factor of strength, so many customers think that the greater the proportion of cement in the refractory castable, the better the strength of the castable.

The castable with cement as the binder needs water to participate in the chemical reaction during the hardening process to form the coagulation and hardening strength. Therefore, the refractory castable is called hydraulic refractory castable, and the cement is the main factor determining the strength of the castable. Factor, but its refractoriness is relatively low, so the amount of cement should be reduced as much as possible after ensuring the necessary room temperature strength.

If it is necessary for compactness and construction workability, it is possible to increase the amount of refractory powder and reduce the amount of cement. It is also one of the measures to reduce the cost. In the construction, the aluminate cement should be strictly prevented from being mixed with Portland cement and lime. Because the two different chemical components mix to produce aqueous tricalcium aluminate, the strength is greatly reduced.